Pure Atomist PA-KA1-5R100 Kanthal A1 0.5x0.1 mm Flat Ribbon 100 ft. Resistance Wire Maximum continuous operating temperature of 1400C / 2550F Heat resistant up to 1500C / 2730F (Melting Point) 0.5x0.1 mm Flat Ribbon Wire Shape: Flat Ribbon All wire is produced and spooled in the U.S.A. Our wire is Annealed, perfectly tensioned with no elongation, scratches, or other flaws to ensure the highest quality wire.